QCD at the LHC

Aug 22, 2011, 8:00 AM → Aug 26, 2011, 6:00 PM Europe/London

St Andrews, Scotland

Frank Krauss (IPPP) , Johannes Bluemlein (DESY) , Michelangelo Mangano (CERN) , Nigel Glover (IPPP)

This workshop aims at instigating discussions and future work between experimenters and theorists, working on strong interactions at the LHC. Topics to be discussed include Latest results from the LHC on Soft and Hard QCD Theory of Jets Parton Density Functions Higher Order Calculations Event Simulations Resummation Top Physics Higgs Physics QCD for BSM studies The workshop will take place in St. Andrews, Scotland starting with registration in the afternoon and reception in the evening of Sunday the 21st August. The scientific part of the meeting will start at 9am on Monday morning the 22nd August through to Friday lunchtime on the 26th August. Departure is in the afternoon of Friday the 26th August. Please register at the workshop website It is a follow-up meeting to the one in 2010 in Trento (webpage).

Monday, August 22

9:00 AM → 1:00 PM Plenary Talks I

9:00 AM Soft QCD results from Atlas

Slides QCDStAndrewsNurse.pdf

9:50 AM Soft QCD results from CMS

Slides CMSSoftQCD.pdf

10:45 AM Coffee Break

11:20 AM Hard QCD results from Atlas

Slides Spreitzer_HardQCDAtlas.pdf

12:10 PM Hard QCD results from CMS

Slides lenzip_standrews11_final.pdf

2:15 PM → 6:00 PM Common Soft/Hard QCD Session I

2:15 PM Parton Showers and Multiple Parton Interactions

Speaker: Zoltan Nagy

Slides znagy.pdf

2:45 PM Discussion

2:55 PM The universality of Monte Carlo tunes

Speaker: Rick Field

Slides QCD@LHC2011_RickField_8-22-11.pdf

3:25 PM Discussion

3:35 PM Double Parton Scattering Theory

Speaker: Jonathan Gaunt

Slides QCDLHC2011_Gaunt.pdf

4:05 PM Coffee/Tea break

4:30 PM Soft physics corrections to Jets

Speaker: Mrinal Dasgupta

Slides dasgupta_softqcd2.pdf

5:00 PM Discussion

5:10 PM Color flow in hard scattering processes

Speaker: Simone Marzani

Slides marzaniQCD@LHC2011.pdf

5:40 PM Discussion

2:30 PM → 9:00 PM PDF Session I

Conveners: Aleksander Glasov (DESY) , Sergey Alekhin (Protvino) , Tara Shears (Liverpool)

2:30 PM W/Z + jet production at CMS

Speaker: Michael Cutajar (Imperial College London)

Slides mcutajar220811.pdf

2:55 PM W/Z + jet production at ATLAS

Speaker: Erik Devetak (Stony Brook)

Slides qcdlhc3.pdf

3:20 PM W/Z production at LHCb

Speaker: Simone Bifani (University College Dublin)

Slides bifani.pdf.pdf

3:45 PM W/Z + jet production at Tevatron

Speaker: Stefano Camrada (IFAE Barcelona)

Slides v+jets_at_Tevatron.pdf

4:10 PM Cofee Break

4:30 PM NNPDF update

Speaker: Luigi Del Debbio (Edinburgh)

Slides StAndrews2011.pdf

4:55 PM HERAPDF update

Speaker: Voica Radescu (Heidelberg Physikalisches Institut)

Slides qcdatlhc2011.pdf

5:20 PM CTEQ PDFs update

Speaker: Joey Huston (Michigan State University)

Slides huston_cteq_update.pdf

6:10 PM Dinner Break

7:30 PM Discussion

8:00 PM → 10:00 PM Whisky Tasting and Talk

Tuesday, August 23

9:00 AM → 1:00 PM Plenary Talks II

9:00 AM PDFs

Speaker: Robert Thorne (UCL)

Slides QCD11sum.pdf

9:50 AM Theory of Jets

Speaker: Mrinal Dasgupta (Manchester)

Slides jettheory.pdf

10:45 AM Coffee Break

11:20 AM Higher Order Calculations

Speaker: Zoltan Kunszt (ETH Zurich)

Slides TalkStAndrew.pdf

12:10 PM Monte Carlo

Speaker: Stefan Hoeche (SLAC)

Slides stefan_standrews_11-08.pdf

2:00 PM → 8:55 PM PDF Session II

EVO is available, Universe community, "QCD@LHC PDF WG", password "pdf"

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BST start 14:00, end 21:00
Eastern daylight time start 09:00, end 16:00

Conveners: Aleksander Glasov (DESY) , Sergey Alekhin (Protvino) , Tara Shears (Liverpool)

2:00 PM MSTW PDFs update

Speaker: Robert Thorne (University College London)

Slides QCD11MSTW.pdf

2:25 PM Review of recent HERA data

Speaker: Matthew Wing (UCL)

Slides Wing-PDF-HeavyQuarks.pdf

2:55 PM Overview of the FFNS and VFNS in DIS

Speaker: Pedro Jimenes-Delgado (ITP Zurich)

Slides StAndrews.pdf

3:25 PM NNLO corrections to the heavy-quark electroproduction

Speaker: Johannes Bluemlein (DESY)

Slides blumlein.pdf

3:55 PM Coffee Break

4:25 PM VFNS in the MSTW fit

Speaker: Robert Thorne (UCL)

Slides thorne_2.pdf

4:55 PM Running-mass definition in the heavy-quark electroproduction

Speaker: Sergey Alekhin (Protvino)

Slides alekhin_rm.pdf

5:25 PM ACOT in the NNLO

Speaker: Pavel Nadolsky (SMU)

Slides b822.pdf

5:55 PM Dinner Break

7:25 PM Discussion

2:30 PM → 9:00 PM Hard QCD Session II

2:30 PM Status of NNLO calculations

Speaker: Dr Nigel Glover (IPPP, Durham University)

Slides glover-standrews.pdf

3:00 PM Discussion

3:15 PM Recent progress in matching shower MC's and ME's

Speaker: Marek Schoenherr

Slides Marek_Schoenherr_StAndrews.pdf

3:45 PM Discussion

4:00 PM Coffee/Tea break

4:30 PM Boosted jet physics

Speaker: Peter Loch

Slides JetSubstructure.pdf

5:00 PM Discussion

5:15 PM W+multi-jets

Speaker: Joey Huston

Slides huston_blackhat_study.pdf

5:45 PM Discussion

6:00 PM Dinner

2:30 PM → 9:00 PM Soft QCD Session II

2:30 PM Soft QCD and Correlations results from ALICE

Speaker: Klaus Reygers

Slides reygers_qcd_at_lhc_2011.pdf

3:00 PM Correlations at the LHC

Speaker: Craig Buttar

Slides Correlations_at_the_LHC.pptx

3:30 PM Minireview on models for diffractive excitations and the Lund cascade model DIPSY

Speaker: Gosta Gustafson

Slides QCDLHCGustafson.pdf

4:15 PM Coffee/Tea break

4:30 PM Forward and Diffractive reslts from CMS and ATLAS

Speaker: Benoit Roland

Slides QCDLHC2011.roland.v3.pdf

5:00 PM Discussion on Future of Soft QCD/Correlations

Wednesday, August 24

9:00 AM → 1:00 PM Plenary Talks III

9:00 AM Resummation

Speaker: Lorenzo Magnea (Torino)

Slides magnea.pdf

9:50 AM Top Physics

Speaker: Peter Uwer (HU Berlin)

Slides uwer.pdf

10:45 AM Coffee Break

11:20 AM Higgs Physics

Speaker: Giampiero Passarino (INFN Torino)

Slides passarino.pdf

12:10 PM QCD 4 BSM

Speaker: Michael Spannowsky (Oregon)

Slides spannowsky_StAndrews.pdf

1:00 PM → 9:00 PM Excursion

Thursday, August 25

9:00 AM → 1:00 PM Common PDF/Hard QCD session III

9:00 AM Use of PDF's in MC generators

Speaker: Zoltan Nagy

Slides znagy-pdf.pdf

9:30 AM Discussion

9:50 AM Uncertainties in prompt photon predictions

Speaker: Ciaran Williams

Slides PhotonsStAndrews.pdf

10:20 AM Discussion

10:45 AM Coffee break

11:15 AM Impact of jet data on PDF's and standard candles

Speaker: Sergey Alekhin

Slides lhc2.pdf

11:35 AM PDF dependence on the Higgs cross section

Speaker: Robert Thorne

Slides QCD11jets.pdf

11:55 AM Discussion

12:15 PM Re-weighting PDF's using experimental data

Speaker: Richard Ball

Slides

• Ball.pdf
• Ball.pdf
• Ball.pdf

12:45 PM Discussion

2:00 PM → 8:30 PM Soft QCD Session III

2:00 PM Soft QCD results from LHCb

Speaker: Andrea Contu (University of Oxford)

Slides AContu_QCD@LHC2011.pdf

2:30 PM ATLAS MC Tuning effort

Speaker: A. Buckley

Paper buckley-tuning.pdf

3:00 PM CMS MC Tunning effort

Speaker: Prof. Rick Field (University of Florida)

Slides QCD@LHC2011_RickField_8-25-11.ppt

3:30 PM PYTHIA MC Status

Speaker: Richard Corke

Slides QCDatLHC.Corke.pdf

4:00 PM Coffee/Tea break

4:30 PM HERWIG MC Status

Speaker: Christian Roehr

Slides StAndrewsRoehr.pdf

5:00 PM Discussion on MC and Tuning

2:30 PM → 9:00 PM Hard QCD session IV

2:30 PM Tensor reductions of Feynman integrals

Speaker: Tord Riemann

Slides riemann.pdf

3:00 PM Discussion

3:10 PM Numerical evaluation of loop corrections

Speaker: Christian Reuschle

Slides TalkStAndrewsCRTune20110825Breaks.pdf

3:40 PM Discussion

3:50 PM Comments on CKKW-L and truncated showers

Speaker: Stefan Prestel (Lund)

Slides comment_prestel.pdf

4:00 PM Coffee break

4:30 PM Soft-gluon resummation in t-tbar production at hadron colliders

Speaker: Ben Pecjak

Slides StAndrews.pdf

4:50 PM Resummation effects in hard QCD events

Speaker: Thomas Becher

Slides becher_resummation_jpg.pdf becher_resummation.pdf

5:10 PM Discussion

5:25 PM Next 5 years of QCD measurements at the LHC (discussion)

6:00 PM Dinner

2:30 PM → 9:00 PM PDF Session IV

EVO is available for the second half of the meeting, Universe community, "QCD@LHC PDF WG"

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BST start 16:00, end 21:00
Eastern daylight time start 11:00, end 16:00

2:30 PM Overview of Alpha_s measurement

Speaker: Johannes Bluemlein (DESY)

Slides ALPH1.pdf

3:00 PM Determination of \alpha_s from event shapes

Speaker: Thomas Becher (Bern)

Slides becher_eventshape_jpg.pdf

3:30 PM Value of Alpha_s from the HERA data

Speaker: Voica Radescu (Heidelberg Physikalisches Institut)

Slides qcdatlhc2011.alphas.pdf

4:00 PM break

4:30 PM Value of Alpha_s from the NNPDF fit

Speaker: Richard Ball (Edinburgh)

Slides Ball_afternoon.pdf

5:00 PM Benchmarking of fitting codes

Speaker: Joey Huston (MSU)

Slides huston_pdf_benchmarking.pdf

5:30 PM Benchmarking of the PDFs and Alpha_s correlation

Speaker: Joey Huston (MSU)

Slides pavel_benchmarking.pdf

6:00 PM break

7:30 PM Discussion on the NLO/NNLO PDFs bechmarking

Friday, August 26

9:00 AM → 12:00 PM Summary Talks and Discussion

9:00 AM Summary of "Hard QCD"

Speaker: Michael Begel (Brookhaven National Laboratory)

Slides begel.pdf

9:30 AM Summary of "Soft QCD"

Slides

• SoftQCDSummaryExp.pdf
• summary_softQCD_part2.pdf
• summary_softQCD_part2.pptx

10:00 AM Summary of "PDFs"

Slides pdfsum.pdf

10:30 AM break

11:00 AM Concluding remarks

Speaker: Keith Ellis (Fermilab)

Slides Ellis_STA.pdf